Distributor for hydraulic reversing turbines



Feb. 6, 1934. A. HUGUENIN DISTRIBUTOR FOR HYDRAULIC REVERSING TURBINES Filed Feb. 5. 1932 2 Sheets-Sheet 1 Feb. 6, 1934. A. HUGUENIN DISTRIBUTOR FOR HYDRAULIC REVERSING TURBINES Filed Feb. 5. 1932 g Sheets-Sheet 2 Patented F eb. 6, 1934 DISTRIBUTOR FOR HYDRAULIC REVERSING TURBKNES Albert Huguenin, Paris, France Application February 5, 1932, Serial No. 591,187, and in France February 6, 1931 2 Claims.

In hydraulic reversing turbines, the individual control or drive of the guide vanes of the distributors is necessarily placed at their middle portion between the two distinct parts of guide 8 vanes arranged above and below the middle por tion. In order to effect the simultaneous control of these guide vanes in the easiest way, it is logical to mutually interconnect them, and the present invention has for its object a device for 10 obtaining this result with the simplest means, and at the same time allowing easy assemblage of the entire device.

The accompanying drawings illustrate, by way of example, a form of construction of this device.

Fig. 1 is a plan view and partial horizontal section of the distributor.

Fig. 2 is a, vertical section developed along the circumference.

Fig. 3 is a radial section made according to .line 1IIIII of Fig. 1.

Fig. 4 diagrammatically shows on a reduced scale a hydraulic reversing turbine with a distributor according to the invention. The position shown in full lines is the inoperative position, While the position shown in dash and dotted lines is the upper and lower operative position of the guide blades of this double distributor.

1 designates the guide vanes or blades proper, and 2 their middle journal made in one piece with the said blades. These journals are mounted in two bearings 3 rigid with a ring 4 which tangentially connects these bearings to each other and on the inner circumference oi which, in front of each guide blade are provided openings closed by covers 5 clearly shown on the righthand side of Fig. l and in Fig. 3. Each journal 2 carries, at its middle portion, a toothed crown 6 cut in a flange '7 which exactly fits between the upper edge 8 of the lower bearing 3 and the lower edge 9 of the upper bearing 3.

It is easy to radially insert from the interior to the exterior, the complete guide blades 12 with their toothed crown 6 and the cylindrical 45 flange 7 when the cover 5 is removed. Before this operation, the transmission wheels 10, loosely rotating about spindles 11, have been inserted in the ring 4 through the openings closed by said covers 5 and placed in the position 10 indicated in dot and dash lines in 2, making it possible to radially insert the toothed crown 6 rigid with the guide blade 1-2. As soon as two adjacent guide blades have been inserted, the intermediate transmission wheel 10 is lowered from its position 10 to its meshing position 10, and the spindle 11 is rigidly secured, by means of its flange 12, to the ring 4.

The fixed casing is shown between the projecting parts of the ring 4, at 13 in Fig. 2 and at 14 in Fig. 3.

Said fixed casing 13 and 14 constitutes at the same time the external envelope of a casing 20 in which the runner 23 is located and rigidly mounted on a driving shaft 24.

21 and 22 designate two members which inter- 65, nally limitate the casing 20.

25 designates a device known per se, which, by means of a rod 26, allows on the one hand to move the distributor along the axis of the turbine to urge the upper or lower group of guide blades in casing 20, according to which way the turbine rotates, and on the other hand to cause each of the guide blades 1 to rotate about a vertical axis.

This device allows of easily assembling the 76;, guides and their intermediate connecting wheel 10 from the interior of the ring 4, thus joining them by the simplest means.

On the left-hand side of Fig. 1, the guide blades are shown in full lines at 1 in their 80 radial position, allowing to axially insert the ring 4 with all its guide blades and, for instance,

as indicated in dot and dash lines, at 1 in the position in which they completely obturate the conduit 15, the two lower and. upper walls 16 85. and 17 of which are shown in Fig. 3.

It is to be understood that the drawing illustrates only one form of construction of the gist of the present invention, which can be carried out in a diiferent manner.

I claim:

1. In a distributor for hydraulic turbines, the combination of guide blades and of a journal made in one piece with the latter, two bearings adapted to receive the said journals, a ring rigid 95,; with the said bearings and tangentially connecting them, a cover on each bearing on the inner circumference of the said ring and opposite each of the said guide blades, a flange cut out in the form of a toothed crown on each journal of the IOQ guide blades and at its middle portion, the said toothed crown being so arranged as to exactly fit between the two bearings of each journal.

2. In a distributor for hydraulic turbines, the

combination of guide blades and of a journal circumference of the said ring and opposite each toothed wheels loosely mounted on the said spindles and adapted to mesh with the toothed crowns of two adjacent guide blades, the said spindles being adapted to allow a sliding movement of the said toothed wheels.

ALBERT HUGUENIN. 

